Efficient printing and dyeing wastewater filtering device

Abstract

The utility model belongs to the technical field of wastewater treatment equipment, and particularly relates to an efficient printing and dyeing wastewater filtering device which comprises a frame body, an upper-layer filtering assembly and a lower-layer filtering assembly are arranged on the frame body, and the upper-layer filtering assembly comprises a magnetic field generating piece and a filtering space which are arranged in an up-down stacked mode. The magnetic field generating part comprises a first filter screen which is electrically controlled, a second filter screen is attached to the inner wall of the filter space, and a stirring assembly is arranged at the bottom of the lower-layer filter assembly. The filtering device disclosed by the utility model can be efficiently and repeatedly used, is small in occupied area, simple in structure, easy to maintain and low in operation cost, can effectively remove heavy metal ions and dyes in wastewater, ensures that the final effluent is pure in water quality and can reach the recycling standard, so that the aims of energy conservation and emission reduction are fulfilled, and the economic benefit is increased. And sustainable development future is created for enterprises.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wastewater treatment equipment technical field, concretely relates to a kind of high-efficiency printing and dyeing wastewater filtering device. BACKGROUND

[0002] With the vigorous development of China's economy, printing and dyeing industry, as one of traditional industries, is also experiencing rapid growth. However, this growth is accompanied by a sharp increase in water consumption for printing and dyeing, leading to a continuous rise in total water pollution, causing an increasingly serious impact on the social environment. How to effectively save water and reduce water pollution while ensuring production efficiency has become a key problem that needs to be solved in the printing and dyeing industry.

[0003] In view of this challenge, recycling printing and dyeing wastewater after treatment is a very effective solution. This method not only can significantly reduce the total amount of wastewater discharge, reduce the pressure on natural water resources, but also can significantly reduce the water supply cost of enterprises, bring considerable economic and social benefits. Through wastewater treatment system, enterprises can maximize the utilization of resources, while also helping to improve the social responsibility image of enterprises.

[0004] However, in the prior art, most of the filtering devices are designed for one-time use and cannot be reused, which not only increases the investment cost of wastewater recycling equipment of enterprises, but also limits its wide application. More complex is that printing and dyeing wastewater usually contains heavy metal ions, and existing filtering devices often have difficulty in completely removing these pollutants, thereby affecting the quality of effluent. Therefore, developing an efficient and reusable filtering device to overcome the limitations of traditional filtering technology is crucial to improve the treatment effect of printing and dyeing wastewater.

[0005] In view of this, the utility model is proposed. CONTENT OF THE UTILITY MODEL

[0006] The utility model provides a kind of high-efficiency printing and dyeing wastewater filtering device to solve the technical problems existing in the prior art.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A kind of high-efficiency printing and dyeing wastewater filtering device, including frame body, the frame body is equipped with upper layer filter assembly and lower layer filter assembly, the upper layer filter assembly includes the magnetic field generating element and filter space of upper and lower stacking, the magnetic field generating element includes electrically controlled first filter screen, the inner wall of filter space is pasted with second filter screen, the lower layer filter assembly bottom is equipped with stirring assembly.

[0009] The filter hole of the second filter screen is smaller than the filter hole of the first filter screen.

[0010] The frame body comprises a first support frame and a second support frame, the first support frame is provided with a first telescopic part, and the first telescopic part is used for separating the magnetic field generating part and the filtering space; the second support frame is provided with a second telescopic part, and the second telescopic part is used for separating the upper filtering assembly and the lower filtering assembly.

[0011] A first liquid outlet pipe is arranged between the filtering space and the lower filtering assembly, and a first valve is arranged on the first liquid outlet pipe.

[0012] The stirring assembly comprises a rotating motor, a rotating rod is arranged on the rotating motor, the rotating rod extends into the lower filtering assembly, and an arc-shaped stirring part is arranged on the rotating rod and matched with the inner wall of the lower filtering assembly.

[0013] A liquid inlet pipe is arranged on one side of the lower filtering assembly, and a second valve is arranged on the liquid inlet pipe.

[0014] A second liquid outlet pipe is arranged at the bottom of the lower filtering assembly, and a third valve is arranged on the second liquid outlet pipe.

[0015] The second liquid outlet pipe is further provided with a filter and a tee pipe, and a fourth valve is arranged on the tee pipe.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) the upper filtering assembly is used for pretreating the wastewater, the magnetic field generating part and the introduced magnetic nano-particles are used as flocculants, the heavy metal ions in the printing and dyeing wastewater are gathered to form magnetic sludge, and then the second filter screen is used for filtering non-metallic particle impurities; then, the precipitating agent is introduced into the lower filtering assembly for reprocessing, the precipitating agent is stirred and reacted with the filtrate after treatment in the upper filtering assembly, the dye is separated from the wastewater, and the cleaning degree of the wastewater is increased;

[0018] (2) the filtering device disclosed by the application can be efficiently and repeatedly used, has small occupied area, simple structure, is easy to maintain, has low operation cost, can effectively remove the heavy metal ions and the dye in the wastewater, ensures that the final effluent quality is pure, can reach the reuse standard, and thus realizes the energy-saving and emission-reducing target, and creates a sustainable development future for enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural diagram of the efficient printing and dyeing wastewater filtering device of the utility model Figure One ;

[0020] Figure 2 It is a structural diagram of the efficient printing and dyeing wastewater filtering device of the utility model Figure Two ;

[0021] Figure 3 Part structure diagram of the efficient printing and dyeing wastewater filtering device Figure One

[0022] Figure 4 Part structure diagram of the efficient printing and dyeing wastewater filtering device Figure Two ;

[0023] Figure 5 Part structure diagram of the efficient printing and dyeing wastewater filtering device Figure Three ;

[0024] Wherein the reference numerals: 1, frame body; 11, first support frame; 12, first telescopic part; 13, second support frame; 14, second telescopic part; 2, upper layer filtering assembly; 3, lower layer filtering assembly; 21, magnetic field generating part; 211, first filter screen; 22, filtering space; 23, second filter screen; 31, stirring assembly; 311, rotary motor; 312, rotating rod; 313, arc-shaped stirring part; 32, liquid inlet pipe; 33, second valve; 5, second liquid outlet pipe; 51, third valve; 52, filter; 53, tee pipe; 531, fourth valve; 6, first liquid outlet pipe; 61, first valve. DETAILED DESCRIPTION

[0025] The utility model will be further explained in combination with specific implementation.

[0026] In the following description, the concepts of up, down, left, right, front and back (or called directional) are for the position state of the figure being described, and the purpose is to facilitate the public to understand, so it cannot be understood as a special limitation on the technical solutions provided by the utility model.

[0027] As shown in Figures 1-5 An efficient printing and dyeing wastewater filtering device, comprising a frame body 1, the frame body 1 is provided with an upper layer filtering assembly 2 and a lower layer filtering assembly 3, the upper layer filtering assembly 2 comprises a magnetic field generating part 21 and a filtering space 22 arranged in a stack, the magnetic field generating part 21 comprises a first filter screen 211 controlled by electricity, the inner wall of the filtering space 22 is attached with a second filter screen 23, and the lower layer filtering assembly 3 is provided with a stirring assembly 31 at the bottom. Wherein, a material with high electrical conductivity and good electrochemical stability can be selected as the base material of the first filter screen 211, for example, carbon-based material (activated carbon fiber, graphene, etc.), metal oxide (such as TiO2, Fe2O3) or other conductive polymers, and then an electric wire is used to electrify it. The filter hole of the second filter screen 23 is smaller than that of the first filter screen 211, and the second filter screen 23 is used to filter non-metallic impurities in the dyeing liquid.

[0028] ​The frame body 1 comprises a first support frame 11 and a second support frame 13, the first support frame 11 is provided with a first telescopic part 12, the first telescopic part 12 is used for separating the magnetic field generating part 21 and the filtering space 22, and is used for cleaning the magnetic mud separated on the first filter screen 211; the second support frame 13 is provided with a second telescopic part 14, the second telescopic part 14 is used for separating the upper layer filtering assembly 2 and the lower layer filtering assembly 3, and facilitates cleaning the inner wall of the lower layer filtering assembly 3. The first liquid outlet pipe 6 is arranged between the filtering space 22 and the lower layer filtering assembly 3, and the first liquid outlet pipe 6 is provided with a first valve 61.

[0029] The stirring assembly 31 comprises a rotating motor 311, the rotating motor 311 is provided with a rotating rod 312, the rotating rod 312 extends into the lower layer filtering assembly 3, and the rotating rod 312 is provided with an arc-shaped stirring part 313, the arc-shaped stirring part 313 is arranged in cooperation with the inner wall of the lower layer filtering assembly 3. That is, when the arc-shaped stirring part 313 stirs the wastewater in the lower layer filtering assembly 3, the inner wall of the lower layer filtering assembly 3 can also be cleaned, and a self-cleaning operation is performed. The liquid inlet pipe 32 is arranged on one side of the lower layer filtering assembly 3, and the liquid inlet pipe 32 is provided with a second valve 33 for introducing a precipitant or a cleaning liquid.

[0030] The second liquid outlet pipe 5 is arranged at the bottom of the lower layer filtering assembly 3, and the second liquid outlet pipe 5 is provided with a third valve 51. The second liquid outlet pipe 5 is also provided with a filter 52 and a three-way pipe 53, and the three-way pipe 53 is provided with a fourth valve 531. By arranging the filter 52, the dye precipitated in the lower layer filtering assembly 3 can be filtered, the filtered liquid, i.e. the treated printing and dyeing wastewater, can be reused, and the dye is discharged through the three-way pipe 53 for reuse. In addition, cleaning liquid can also be introduced into the lower layer filtering assembly 3 through the liquid inlet pipe 32, and the inner wall of the lower layer filtering assembly 3 is cleaned and then discharged through the three-way pipe 53.

[0031] Specifically, first, the first valve 61 on the first liquid outlet pipe 6 is closed, then wastewater and a proper amount of magnetic nano-particles are poured into the upper layer filtering assembly 2, the first filter screen 211 is electrified, the magnetic nano-particles combined with pollutants are rapidly gathered and separated by using magnetic force, at this time, the pollutants have formed magnetic mud; the magnetic field generating part 21 is lifted by using the first telescopic part 12, the first filter screen 211 is de-energized, and the magnetic mud is taken out, the magnetic nano-particles can be reused by using physical methods such as ultrafiltration or high-speed centrifugation.

[0032] The first valve is opened, and the filtrate treated by the first filter screen 211 is filtered by the second filter screen 23 again, and the filtrate after twice filtering is basically free of heavy metal ions and particulate impurities. After the filtrate falls from the upper filter assembly 2 to the lower filter assembly 3, the second valve 33 on the liquid inlet pipe 32 of one side of the lower filter assembly 3 is opened, and a certain amount of precipitant (for example, calcium chloride can be used as the precipitant) is introduced, so that the dye is separated from the wastewater, and the impurities and unnecessary colors in the solution are removed; at the same time, the action of the precipitant can be accelerated by the stirring assembly 31. After the wastewater is treated again in the lower filter assembly 3, the third valve 51 is opened, and the fourth valve 531 is closed, and the wastewater is reused after passing through the filter 52 (the filter 52 can be a fiber ball filter 52, a membrane filter 52 or an activated carbon filter 52, etc.), and

[0033] The filtrate precipitated in the lower filter assembly 3 can be discharged through the three-way pipe 53, in addition, a cleaning liquid can also be introduced through the liquid inlet pipe 32, and the inner wall of the lower filter assembly 3 is cleaned by the stirring assembly 31, and then the cleaning liquid is discharged through the three-way pipe 53; the upper filter assembly 2 and the lower filter assembly 3 can also be separated by the second telescopic piece 14, so that the inner wall of the lower filter assembly 3 is cleaned by the staff.

[0034] The wastewater is pretreated by the upper filter assembly 2, the heavy metal ions in the printing and dyeing wastewater are aggregated to form magnetic sludge by using the magnetic field generating piece 21 and introducing magnetic nanoparticles as flocculants, and the non-metallic particulate impurities are filtered by the second filter screen 23; then the precipitant is introduced in the lower filter assembly 3 for reprocessing, the precipitant is stirred with the filtrate treated in the upper filter assembly 2, the dye is separated from the wastewater, and the cleaning degree of the wastewater is increased.

[0035] The filtering device disclosed in the application can be used efficiently and repeatedly, has a small floor area, a simple structure, is easy to maintain, has a low operation cost, can effectively remove heavy metal ions and dyes in wastewater, ensures that the final effluent is pure, can reach the reuse standard, and thus realizes the goal of energy saving and emission reduction, and creates a sustainable future for enterprises.

[0036] The above is a further detailed description of the technical solutions provided in combination with the preferred embodiments of the patent, and cannot be regarded as a limitation of the specific implementation of the utility model to the above description. For ordinary skilled persons in the technical field to which the patent belongs, without departing from the concept of the patent, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the patent.

Claims

1. An efficient printing and dyeing wastewater filtering device, characterized in that: The utility model provides a filter device, including frame body, be equipped with upper layer filter assembly and lower layer filter assembly on frame body, upper layer filter assembly includes the magnetic field generating piece and filter space of upper and lower stack, the magnetic field generating piece includes electric control's first filter screen, the inner wall of filter space is pasted with second filter screen, lower layer filter assembly bottom is equipped with stirring assembly.

2. The efficient printing and dyeing wastewater filtering device according to claim 1, characterized in that: The second filter screen has smaller filter holes than the first filter screen.

3. The efficient printing and dyeing wastewater filtering device according to claim 1, characterized in that: The frame body includes a first support frame and a second support frame, the first support frame is provided with a first telescopic part, the first telescopic part is used for separating the magnetic field generating piece and the filter space, the second support frame is provided with a second telescopic part, the second telescopic part is used for separating the upper layer filter assembly and the lower layer filter assembly.

4. The efficient printing and dyeing wastewater filtering device according to claim 1, characterized in that: The filter space and the lower layer filter assembly are provided with a first liquid outlet pipe, and the first liquid outlet pipe is provided with a first valve.

5. The efficient printing and dyeing wastewater filtering device according to claim 1, characterized in that: The stirring assembly includes a rotating motor, the rotating motor is provided with a rotating rod, the rotating rod extends into the lower layer filter assembly, and the rotating rod is provided with an arc-shaped stirring part, and the arc-shaped stirring part is arranged in cooperation with the inner wall of the lower layer filter assembly.

6. A high efficiency printing and dyeing wastewater filtering device according to claim 1, characterized in that: One side of the lower layer filter assembly is provided with a liquid inlet pipe, and the liquid inlet pipe is provided with a second valve.

7. The efficient printing and dyeing wastewater filtering device according to claim 1, characterized in that: The bottom of the lower layer filter assembly is provided with a second liquid outlet pipe, and the second liquid outlet pipe is provided with a third valve.

8. A high efficiency printing and dyeing wastewater filtering device according to claim 7, characterized in that: The second liquid outlet pipe is further provided with a filter and a tee pipe, and the tee pipe is provided with a fourth valve.

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